A method of delinting cotton seeds with an alkanesulfonic acid comprises the steps of applying the alkanesulfonic acid to surfaces of linted cotton seeds, optionally heating the linted cotton seeds, and applying mechanical force to the surfaces of the linted cotton seeds. A composition for delinting cotton seeds comprises an alkanesulfonic acid (e.g. methanesulfonic acid (MSA)), a surfactant, and water.

A method of delinting cotton seeds with an alkanesulfonic acid comprises the steps of applying the alkanesulfonic acid to surfaces of linted cotton seeds, optionally heating the linted cotton seeds, and applying mechanical force to the surfaces of the linted cotton seeds. A composition for delinting cotton seeds comprises an alkanesulfonic acid (e.g. methanesulfonic acid (MSA)), a surfactant, and water.

A method of delinting cotton seeds with an alkanesulfonic acid comprises the steps of applying the alkanesulfonic acid to surfaces of linted cotton seeds, optionally heating the linted cotton seeds, and applying mechanical force to the surfaces of the linted cotton seeds. A composition for delinting cotton seeds comprises an alkanesulfonic acid (e.g. methanesulfonic acid (MSA)), a surfactant, and water.

A method of delinting cotton seeds with an alkanesulfonic acid comprises the steps of applying the alkanesulfonic acid to surfaces of linted cotton seeds, optionally heating the linted cotton seeds, and applying mechanical force to the surfaces of the linted cotton seeds. A composition for delinting cotton seeds comprises an alkanesulfonic acid (e.g. methanesulfonic acid (MSA)), a surfactant, and water.

A particle-containing fiber bundle having high uniformity and further improved feed efficiency, and a production method of the same are provided. The particle-containing fiber bundle production method of the present invention is for producing a particle-containing fiber bundle having a prolate spheroidal shape or a strand shape, the production method including a step of mixing a plurality of shortened fibers, particles having a median diameter of 100 m or less, an organic binder, and a liquid, in which the fibers include carbon fibers, and the particles are used in an amount of 10 parts by mass or more with respect to 100 parts by mass of the fibers.